Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 479350
Title Asymmetric flow field-flow fractionation of manufactured silver nanoparticles in soil pore water
Author(s) Koopmans, G.F.; Hiemstra, T.; Molleman, B.; Regelink, I.C.; Comans, R.N.J.
Event NanoCyty 2014, Utrecht, the Netherlands, 2014-10-27/2014-10-28
Department(s) Soil Chemistry and Chemical Soil Quality
Publication type Abstract in scientific journal or proceedings
Publication year 2014
Abstract Manufactured silver nanoparticles (AgNP) are among the most widely used nanoparticles in consumer products and their unintended release to soils has become a serious concern. For a meaningful assessment of the environmental risks of AgNP in soils, their concentration and particle-size-distribution in soil pore water need to be measured. This can be done by using asymmetric flow field-flow fractionation (AF4), which is an analytical technique for the continuous fractionation of nanoparticles as a function of their diffusion coefficient. We will present results of a study focussing on the development of a methodology consisting of AF4 in combination with UV-Vis spectroscopy and HR-ICP-MS to quantify the concentration and particle-size-distribution of AgNP coated with either citrate or polyvinylpyrrolidone in soil pore water obtained from three soils with contrasting properties.
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